function set_teacherList_inSelect(select) {
	var xhr = false;
	xhr = new XMLHttpRequest();
	xhr.onreadystatechange = function() {
		var message;
		if (xhr.readyState == 4) {
			if (xhr.status == 200) {
				var teacherList = JSON.parse(xhr.responseText);

				for (var num = 0; num < teacherList.length; num++) {
					var option = document.createElement("option");
					option.appendChild(document
							.createTextNode(teacherList[num].teacher_name));
					select.appendChild(option);
					option.value = teacherList[num].teacher_id;
				}

			} else {
				toastr.error(xhr.status);
			}
		}
	}

	xhr.open("POST", "/jxfgyj/teacher/listTeacher");

	xhr.send(null);
}